Influence of pulsed laser scanning patterns on microstructural evolution and mechanical properties of Inconel 718 in direct laser deposition
文献类型：期刊论文
| 作者 | Ma, Liang1,2; Kong, Xiangwei2; Liang, Jingjing1; Li, Jinguo1; Feng, He4; Ci, Shiwei3; Zhang, Xue1; Sun, Cong2; Jin, Zhibo2 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 25页码:1231-1244 |
| 关键词 | Direct laser deposition Pulsed laser Numerical model Heat transfer Microstructure Crystallographic texture |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2023.06.012 |
| 通讯作者 | Kong, Xiangwei(xwkong@me.neu.edu.cn) ; Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn) |
| 英文摘要 | The mechanical properties of direct laser deposition (DLD) parts are crucial for engineering applications, which are determined by the microstructure and texture. To achieve fine microstructure and higher mechanical performance, pulsed laser deposition is used to generate less heat accumulation and a higher cooling rate. However, the relationship between microstructure and thermal history is difficult to investigate due to the transient temperature change. In this work, a three-dimensional numerical model is developed to study the thermal behavior of the molten pool in the continuous laser deposition (CLD), the continuous pulsed laser deposition (CPLD), and the interval pulsed laser deposition (IPLD) processes. The microstructure of the deposition samples is investigated by optical microscope and electron back-scattered diffraction. The mechanical response of the deposition samples is investigated by tensile test and microhardness test. Compared with the CLD, CPLD, and IPLD result in higher temperature gradient and cooling rate, long columnar grains, and a strong fiber texture. However, grains with larger sizes and a texture with a herringbone pattern due to the change of heat flow are obtained in CLD samples. The test values of IPLD samples show higher tensile strength, higher yield strength, lower ductility, and higher hardness values. This research brings about a perspective for studying the thermal effects of deposition layers and a novelty deposition process to obtain specific microstructures and better mechanical properties.(c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | National Science and Technology Major Project[2019-VII-0019-0161] ; National Key Research and Development Program of China[SQ2019YFB1704500] ; State Ministry of Science and Technology Innovation Fund of China[2018IM030200] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001089761500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Science and Technology Major Project ; National Key Research and Development Program of China ; State Ministry of Science and Technology Innovation Fund of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177835]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Kong, Xiangwei; Liang, Jingjing; Li, Jinguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China 3.State owned Wuhu Machinery Factory, Anhui Lab Aeronaut Equipment Measurement Control &, Wuhu 241007, Peoples R China 4.Shenyang Aircraft Corp, Shenyang 110850, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Liang,Kong, Xiangwei,Liang, Jingjing,et al. Influence of pulsed laser scanning patterns on microstructural evolution and mechanical properties of Inconel 718 in direct laser deposition[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,25:1231-1244. |
| APA | Ma, Liang.,Kong, Xiangwei.,Liang, Jingjing.,Li, Jinguo.,Feng, He.,...&Jin, Zhibo.(2023).Influence of pulsed laser scanning patterns on microstructural evolution and mechanical properties of Inconel 718 in direct laser deposition.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,25,1231-1244. |
| MLA | Ma, Liang,et al."Influence of pulsed laser scanning patterns on microstructural evolution and mechanical properties of Inconel 718 in direct laser deposition".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 25(2023):1231-1244. |
入库方式： OAI收割
来源：金属研究所
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